NOVEL SUPER WIDE BAND ANTENNA WITH WLAN/WiMAX BAND REJECTION AND COMPACT SIZE

摘要

A 25×25×1.6mm3 implementation of a microstrip-fed printed monopole antenna for the future UWB wireless systems application ispresented. It has features of possesses band notched function (from 4.88 to 6.07GHz), extremely wide impedance bandwidth (from 2.58to 18GHz) and its compact size. By using a smooth tapering between the semi fractal-shaped patch and the half ellipse-shaped defectedground plane, the wide impedance bandwidth is achieved with ratio bandwidth larger than 6.97:1. Numerical and experimental resultsare in good agreement and they indicate that the proposed antenna has a measured 2:1 VSWR bandwidth of 149.8%, except the rejectedWLAN band.